Determination of charge states of cobalt ions in nanostructured GdBaCo 2 O 5.5  cobaltites by means of X-ray absorption spectroscopy

V. V. Mesilov; M. S. Udintseva; S. N. Shamin; S. V. Naumov; S. V. Telegin; B. A. Gizhevskii; V. R. Galakhov

doi:10.1134/S1063783417040151

Determination of charge states of cobalt ions in nanostructured GdBaCo₂O_5.5 cobaltites by means of X-ray absorption spectroscopy

作者: Mesilov V.V.¹, Udintseva M.S.², Shamin S.N.¹, Naumov S.V.¹, Telegin S.V.¹, Gizhevskii B.A.¹, Galakhov V.R.¹
隶属关系:
1. Miheev Institute of Metal Physics, Ural Branch
2. Ural State University of Railway Transport
期: 卷 59, 编号 4 (2017)
页面: 829-834
栏目: Atomic Clusters
URL: https://ogarev-online.ru/1063-7834/article/view/200108
DOI: https://doi.org/10.1134/S1063783417040151
ID: 200108

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X-ray absorption spectroscopy has been applied for a characterization of charge states of cobalt ions of nanostructured GdBaCo₂O_5.5 complex oxides. The analysis of experimental and theoretical data has allowed establishing a reduction in the oxidation degree from Co³⁺ to Co²⁺ for a part of cobalt ions in GdBaCo₂O_5.5 nanoceramics obtained by torsion under pressure.